EP1410577A1 - Elements reseau destine a un reseau optique ayant tune fonction de securite, en particulier a un reseau optique a topologie annulaire - Google Patents

Elements reseau destine a un reseau optique ayant tune fonction de securite, en particulier a un reseau optique a topologie annulaire

Info

Publication number
EP1410577A1
EP1410577A1 EP02754351A EP02754351A EP1410577A1 EP 1410577 A1 EP1410577 A1 EP 1410577A1 EP 02754351 A EP02754351 A EP 02754351A EP 02754351 A EP02754351 A EP 02754351A EP 1410577 A1 EP1410577 A1 EP 1410577A1
Authority
EP
European Patent Office
Prior art keywords
data processing
network
processing device
data
optical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02754351A
Other languages
German (de)
English (en)
Other versions
EP1410577B1 (fr
Inventor
Ansgar Meroth
Dietmar Meyer
Franz-Joseph Petry
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7691433&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1410577(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1410577A1 publication Critical patent/EP1410577A1/fr
Application granted granted Critical
Publication of EP1410577B1 publication Critical patent/EP1410577B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/80—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water
    • H04B10/801—Optical aspects relating to the use of optical transmission for specific applications, not provided for in groups H04B10/03 - H04B10/70, e.g. optical power feeding or optical transmission through water using optical interconnects, e.g. light coupled isolators, circuit board interconnections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/437—Ring fault isolation or reconfiguration

Definitions

  • Network component for an optical network with an emergency function in particular for an optical network in ring topology
  • the present invention relates to a ne component for an optical network with an emergency function, in particular for an optical network in a ring topology.
  • Multimedia systems in modern motor vehicles are constructed as networked systems that use optical or electrical bus systems in a ring topology.
  • key components for example an operating unit
  • the internal structure of which consists of a large number of individual components (for example a man-machine interface processor, tuner, gateway, etc.).
  • the arrangement of these components in a housing requires, for reasons of bus conformity, a message and data exchange via the external bus, ie an internal data exchange between individual, independent components is not permitted.
  • the components combined in one device behave like separate logical devices.
  • FIG. 2 shows the construction of a known multimedia system for motor vehicles with an optical bus system 1 in the form of a ring topology.
  • D2B, MOST or similar systems can be used here as bus systems customary in motor vehicles.
  • Further components 3a-d are integrated into this optical ring.
  • the optical coupling of a certain component 3d, which is explained in more detail here, to the optical bus system 1 takes place via a plug system 2, which in turn is made up of a receiver module 4 and a transmitter module 5.
  • the receiver module 4 receives optical signals from the optical bus system 1 and converts them into electrical signals. Electrical signals are converted into optical signals in the transmitter module 5 and fed into the ring 1.
  • Component 6 consists of a transceiver 8 and a processor 9.
  • a transceiver 8 In addition to the transceiver 10 and the pro processor 11, yet another interface, here implemented as a CAN bus interface 12, for data and command exchange with other conventional bus systems in the motor vehicle via the lines CAN_H and CAN_L, which is connected to the processor 11 via the bus B3.
  • Line 22 is connected to an output STATUS of plug system 2 and reports activity (light) on optical ring 1 to processor 9 or 11 of internal components 6 or 7.
  • Optical signals from ring 1 are available as electrical signals at output RX_DATA of receiver module 4 on line 13 and are passed on to input 15 of transceiver 8 of component 6.
  • processor 9 can fetch data and commands from the ring via the bus B1 and feed them via the output 16 of the transceiver 8 and the line 17 into the input 18 of the transceiver 10, via the transceiver 10 the data exchange takes place via the bus B2 from the processor 11, which feeds its data via the output 19 from the transceiver 10 and the line 21 into the input TX_DATA of the transmitter module. After electrical / optical conversion in the transmitter module 5, the data and commands are available on the optical ring 1.
  • processor 11 receives data intended for processor 9 via CAN interface 12, or if data is to be exchanged between processors 9 and 11, this can only be done via optical ring 1, line 13, transceiver 8, line 17, Transceiver 10 and line 21 take place.
  • the coupling point between the optical bus system and the electrical ring is the connector system 2. If the optical bus system 1 breaks or there is a faulty contact on the connector system 2, data exchange between the components within the device is no longer possible. This results in a total failure of the device, even if operation of the device without additional participants from the optical bus 1 would be possible within the device or via other vehicle-specific interfaces (e.g. CAN interface 12).
  • the problem underlying the present invention generally consists in designing a network component for an optical network with emergency operation function, in particular for an optical network in ring topology, which has minimal emergency operation properties (e.g. operability by the driver, error display, acoustic signal) if the optical or electrical ring breaks Warnings, maintenance of minimal (radio) functions guaranteed within the component.
  • emergency operation properties e.g. operability by the driver, error display, acoustic signal
  • the network component according to the invention for an optical network with an emergency function, in particular for an optical network in a ring topology, with the features of claim 1 has the following advantages:
  • the identical software can be used to its full extent in the fault and normal mode
  • this concept can be expanded as required within the network component. Any number of additional components can be integrated in the connection between the first and second data processing devices.
  • the idea on which the present invention is based is to maintain an emergency running property of various key components within a network component by interconnecting these key components in a minimal ring system.
  • the full The functionality of the network components can then be used, minus the functions that are made available by other bus participants on the optical ring.
  • the coupling device comprises an optical connector system.
  • the receiving module has the detection device for detecting the network status and outputs a logical electrical signal of at least one bit according to the respective network status active / inactive.
  • the first data processing device and / or the second data processing device are connected to the detection device.
  • the first data processing device and / or the second data processing device have a transceiver and a processor connected to each.
  • the switching device receives the logical electrical signal as Control signal and connects the input of the first data processing device to the Err.pfar.gsmoul when the network status is active and connects the input of the first data processing device to the output of the second data processing device when the network status is not active.
  • the first and / or second data processing device is connected via an interface to a wired network.
  • the first data processing device and / or the second data processing device output a missing logical electrical signal to indicate an active network status after sending an own message on a display or via the interface as an error message.
  • Figure 1 shows the structure of a multimedia system for motor vehicles with emergency running property according to an embodiment of the invention.
  • Fig. 2 shows the structure of a known multimedia S stems for motor vehicle.
  • FIG. 1 shows the construction of a multimedia system for motor vehicles with emergency running properties according to an embodiment of the invention.
  • the same reference numerals as in FIG. 1 denote the same or functionally identical components.
  • a switch 23 is inserted in this embodiment to ensure emergency running properties.
  • the switch 23 is connected with its input INI and the line 13 with the output RX_DATA of the plug system 3.
  • the second input IN2 of the switch 23 is on the line 21 and is thus connected to the output T_DATA of the connector system 3.
  • the output OUT of the switch 23 is connected to the input 15 of the transceiver 8 via the line 28.
  • the input EN ⁇ of the switch 23 is connected to the line 22.
  • the changeover switch 23 is constructed such that its output OUT is optionally connected to one of the inputs INI or IN2 depending on the signal voltage at the input EN ⁇ .
  • the potential at EN N is selected such that the input INI is connected to the output OUT at O potential, ie the input IN2 is connected to the output OJT at 1 potential.
  • the potential at ⁇ ' can be reversed by selecting an appropriate switch or taking suitable circuit measures.
  • Bus activity is signaled by O potential on the line 22 to the processors 9 and 11 and is located at the input EN 'of the switch 23, which connects the input INI to the output OUT by the potential change at E'.
  • the signals from the optical ring 1 pass via the output RX_DATA of the receiver module 4 and the line 13 to the input INI of the switch 23, whose output OUT is connected to the input 15 of the transceiver 8 via line 28.
  • the bus structure is connected: External components 3a-c and internal components 6 and 7 can exchange data with each other.
  • the processors 9 and 11 can e.g. Display or output on a display or via CAN interface 12.
  • the present invention has been described above on the basis of a preferred exemplary embodiment, it is not restricted to this but can be modified in a variety of ways.
  • the detection of the network status according to the above embodiment is only an example and could also be carried out by one of the processors, for example.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Small-Scale Networks (AREA)
  • Optical Communication System (AREA)

Abstract

La présente invention concerne un élément réseau (3d) destiné à un réseau optique (1) comprenant: un dispositif de couplage (2; 4, 5) destiné au couplage optique de l'élément réseau (3d) au réseau optique (1), le dispositif de couplage (2; 4, 5) présentant un module de réception (4) et un module d'émission (5); un premier dispositif de traitement de données (8, 9) qui est relié de manière unidirectionnelle au module de réception (4); un second dispositif de traitement de données (10, 11) qui est relié de manière unidirectionnelle au module d'émission (5), le premier dispositif de traitement de données (8, 9) étant relié au second dispositif de traitement de données (10, 11) pour permettre la transmission unidirectionnelle de données au second dispositif de traitement de données (10, 11); un dispositif de détection (4) destiné à la détection du statut réseau; et un dispositif de commutation (23) destiné à la commutation de l'entrée du premier dispositif de traitement de données (8, 9) entre le module de réception (4) et la sortie (19) du second dispositif de traitement de données (10, 11) en fonction du statut réseau détecté.
EP02754351A 2001-07-11 2002-07-11 Elements reseau destines a un reseau optique ayant une fonction de securite, en particulier a un reseau optique a topologie annulaire Revoked EP1410577B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10133749 2001-07-11
DE10133749A DE10133749B4 (de) 2001-07-11 2001-07-11 Netzwerkkomponente für ein optisches Netzwerk mit Notlauffunktion, insbesondere für ein optisches Netzwerk in Ringtopologie
PCT/DE2002/002544 WO2003007554A1 (fr) 2001-07-11 2002-07-11 Elements reseau destine a un reseau optique ayant tune fonction de securite, en particulier a un reseau optique a topologie annulaire

Publications (2)

Publication Number Publication Date
EP1410577A1 true EP1410577A1 (fr) 2004-04-21
EP1410577B1 EP1410577B1 (fr) 2007-01-17

Family

ID=7691433

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02754351A Revoked EP1410577B1 (fr) 2001-07-11 2002-07-11 Elements reseau destines a un reseau optique ayant une fonction de securite, en particulier a un reseau optique a topologie annulaire

Country Status (4)

Country Link
US (1) US7260325B2 (fr)
EP (1) EP1410577B1 (fr)
DE (2) DE10133749B4 (fr)
WO (1) WO2003007554A1 (fr)

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Publication number Priority date Publication date Assignee Title
US5898801A (en) 1998-01-29 1999-04-27 Lockheed Martin Corporation Optical transport system
US20030215235A1 (en) * 2002-05-17 2003-11-20 Yazaki Corporation Optical communication system for vehicle, signal relay apparatus and optical communication connector
JP2004048658A (ja) * 2002-05-17 2004-02-12 Yazaki Corp 光通信システム、信号中継装置、光通信用コネクタ
WO2004093351A2 (fr) * 2003-03-31 2004-10-28 Lockheed Martin Corporation Systemes et dispositifs d'interface de reseau optique
DE10328684B4 (de) 2003-06-26 2005-07-21 Daimlerchrysler Ag Mittel zur Erfassung der optischen Empfangslichtleistung
DE10336490A1 (de) * 2003-08-08 2005-03-10 Harman Becker Automotive Sys Verfahren zur Kommunikation zweier mittels eines ersten Netzwerkes vernetzter Einheiten sowie zwei Einheiten miteinander verbindendes erstes Netzwerk
DE102006033639A1 (de) * 2006-07-20 2008-01-24 Robert Bosch Gmbh Elektronische Vorrichtung zum Anschluss an einen optischen Datenbus und Verfahren
GB0718633D0 (en) * 2007-05-16 2007-11-07 Seereal Technologies Sa Holograms
US10682722B2 (en) * 2014-12-18 2020-06-16 Illinois Tool Works Inc. Systems and methods for measuring characteristics of a welding cable with a low power transceiver
US10449614B2 (en) 2014-12-18 2019-10-22 Illinois Tool Works Inc. Systems and methods for solid state sensor measurements of welding cables

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JPS5792948A (en) * 1980-12-02 1982-06-09 Toyota Motor Corp Loop data transmission system
US4985888A (en) * 1987-04-24 1991-01-15 Madge Networks Limited Token ring system hierarchy
US5127067A (en) * 1990-09-10 1992-06-30 Westinghouse Electric Corp. Local area network with star topology and ring protocol
US5299312A (en) * 1990-11-15 1994-03-29 Massachusetts Institute Of Technology Network fault recovery by controllable switching of subnetworks
US5440655A (en) * 1993-12-29 1995-08-08 At&T Corp. Optical fiber connector bypass device and method using same
DE19624528B4 (de) * 1996-06-20 2009-05-20 Robert Bosch Gmbh Verfahren zur Steuerung von Informationsübertragung zwischen Komponenten und Komponente zur Durchführung des Verfahrens
DE19722189A1 (de) * 1997-05-27 1998-12-03 Bayerische Motoren Werke Ag Verfahren zum Betrieb eines Ringbusses mit mehreren Teilnehmern sowie Vorrichtung zum Durchführen des Verfahrens
JP4014731B2 (ja) * 1998-07-08 2007-11-28 矢崎総業株式会社 リングネットワークシステム
DE19832039A1 (de) * 1998-07-16 2000-01-20 Alcatel Sa Knoten eines Punkt-zu-Mehrpunkt Netzwerkes
US6898206B2 (en) * 2001-06-06 2005-05-24 Advanced Fibre Access Corporation Wavelength division multiplexed (WDM) ring passive optical network (PON) with route protection for replacement of splitter based passive optical networks

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Also Published As

Publication number Publication date
DE10133749B4 (de) 2010-09-16
DE50209297D1 (de) 2007-03-08
DE10133749A1 (de) 2003-01-23
EP1410577B1 (fr) 2007-01-17
US20040076429A1 (en) 2004-04-22
WO2003007554A1 (fr) 2003-01-23
US7260325B2 (en) 2007-08-21

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